The present disclosure pertains to a photovoltaic product (1), comprising a foil with a photovoltaic layer stack (10) and an electrically conductive layer stack (20) that supports the photovoltaic layer stack and that in an operational state provides for a transport of electric energy generated by the photovoltaic layer stack to an external load. The electrically conductive layer stack (20) comprises a first and a second electrically conductive layer (21, 22) and an electrically insulating layer (23) arranged between the first and the second electrically conductive layer, wherein the photovoltaic layer stack (10) has first electrical contacts (PI, P2) of a first polarity that are electrically connected to the first electrically conductive background domain (210) and has second electrical contacts (N1, N2) of a second polarity opposite to said first polarity that are electrically connected to the first contact areas (211), and wherein the second electrically conductive background domain (220) and one or more of the second contact areas (221) serve as electric contacts for the output clamps.

A photovoltaic device includes one or more features that taken alone or in combination enhance its efficiency. Some embodiments may comprise a tandem solar device in which a top PV cell is fabricated upon a front transparent substrate, that also serves as the top encapsulating substance. The top PV cell including the front encapsulating substance is then bonded (e.g., using adhesive) to a bottom PV cell in order to complete the tandem device. Using the same transparent, insulating element as both front encapsulating substance and a substrate for fabricating the top PV cell, obviates to the need to provide a separate structure (with resulting interfaces) to perform the latter role. For tandem and non-tandem PV devices, a Through-Substrate-Via (TSV) structure may extend through an insulating substrate in order to provide contact with an opposite side (e.g., back electrode). Embodiments may find particular use in fabricating shingled perovskite photovoltaic solar cells.

Lateral multi junction photovoltaic cells, devices, and methods of fabrication are provided. The photovoltaic cells include a plurality of photovoltaic subcells mechanically stacked together in a stack. Each photovoltaic subcell includes a subcell substrate, and a light absorption structure associated with the substrate. Each light absorption structure is optimized for a respective defined spectral range of incoming radiation, with the light absorption structures of multiple subcells of the plurality of photovoltaic subcells being optimized for different spectral ranges, and being offset in the stack relative to an optical axis to avoid overlap. The photovoltaic cell further includes a spectrally-dispersive optical element, with the photovoltaic subcells in the stack being respectively located and aligned relative to the optical element based, at least in part, on the respective spectral ranges of the subcells' light absorption structures.

Lateral multi junction photovoltaic cells, devices, and methods of fabrication are provided. The photovoltaic cells include a plurality of photovoltaic subcells mechanically stacked together in a stack. Each photovoltaic subcell includes a subcell substrate, and a light absorption structure associated with the substrate. Each light absorption structure is optimized for a respective defined spectral range of incoming radiation, with the light absorption structures of multiple subcells of the plurality of photovoltaic subcells being optimized for different spectral ranges, and being offset in the stack relative to an optical axis to avoid overlap. The photovoltaic cell further includes a spectrally-dispersive optical element, with the photovoltaic subcells in the stack being respectively located and aligned relative to the optical element based, at least in part, on the respective spectral ranges of the subcells' light absorption structures.

The invention relates to a semiconductor structure made of a substrate and a semiconductor layer which are bonded integrally to each other via a thermally and/or chemically cured adhesive. Likewise, the invention relates to a method for the production of such integral bonds. Use in such semiconductor structures, in particular as solar cell or solar cell module.

A high efficiency configuration for a solar cell module comprises solar cells arranged in a shingled manner to form super cells, which may be arranged to efficiently use the area of the solar module, reduce series resistance, and increase module efficiency. The solar cell module may comprise for example a series connected string of N greater than or equal to 25 rectangular or substantially rectangular solar cells having on average a breakdown voltage greater than about 10 volts, with the solar cells grouped into one or more super cells each of which comprises two or more of the solar cells arranged in line with long sides of adjacent solar cells overlapping and conductively bonded to each other, and with no single solar cell or group of <N solar cells in the string of solar cells individually electrically connected in parallel with a bypass diode.

A high efficiency configuration for a solar cell module comprises solar cells arranged in a shingled manner to form super cells, which may be arranged to efficiently use the area of the solar module, reduce series resistance, and increase module efficiency. The solar cell module may comprise for example a series connected string of N greater than or equal to 25 rectangular or substantially rectangular solar cells having on average a breakdown voltage greater than about 10 volts, with the solar cells grouped into one or more super cells each of which comprises two or more of the solar cells arranged in line with long sides of adjacent solar cells overlapping and conductively bonded to each other, and with no single solar cell or group of <N solar cells in the string of solar cells individually electrically connected in parallel with a bypass diode.

The present invention refers to a photovoltaic cell (1) comprising a heterojunction with a base layer (L4, L4′, L4″) made from an Aluminium-Ar-senic-basedalloy and an emitter layer (L3, L3′) made from an Indium-Phosphorous based alloy wherein the emitter layer (L3, L3′) has a thickness smaller than 100 nm and acts as a passivation layer to prevent oxidation of the base layer and reduces surface recombination (L4, L4′, L4″).

A photovoltaic device and method of manufacture of a photovoltaic device including an assembly of at least two photovoltaic cells; and a lamination material inserted between each photovoltaic cell, each photovoltaic cell including: two current output terminals; at least one photovoltaic junction; current collection buses; and connection strips extending from the current collection buses to the current output terminals, all the current output terminals being placed on a single surface of the photovoltaic device is provided.

A photovoltaic device and method of manufacture of a photovoltaic device including an assembly of at least two photovoltaic cells; and a lamination material inserted between each photovoltaic cell, each photovoltaic cell including: two current output terminals; at least one photovoltaic junction; current collection buses; and connection strips extending from the current collection buses to the current output terminals, all the current output terminals being placed on a single surface of the photovoltaic device is provided.